Method ScrollUpdateFromGeom

core/scroll.go:111–120

ScrollUpdateFromGeom updates the scrollbar for given dimension based on the current Geom.Scroll value for that dimension. This can be used to programatically update the scroll value.

(d math32.Dims)

// based on the current Geom.Scroll value for that dimension.
// This can be used to programatically update the scroll value.
func (fr *Frame) ScrollUpdateFromGeom(d math32.Dims) {
	if !fr.HasScroll[d] || fr.scrolls[d] == nil {
		return
	}
	sb := fr.scrolls[d]
	cv := fr.Geom.Scroll.Dim(d)
	sb.setValueEvent(-cv)
	fr.This.(Layouter).ApplyScenePos() // computes updated positions
	fr.NeedsRender()
}

// ScrollValues returns the maximum size that could be scrolled,
// the visible size (which could be less than the max size, in which